Final Draft
International Standard
ISO/FDIS 9689
Raw optical glass — Resistance to attack by aqueous alkaline phosphate-containing detergent solutions at 50 degrees C — Testing and classification
Reference number
ISO/FDIS 9689
Edition 2
© ISO 2025
Final Draft International Standard
Under development
This draft is in the approval phase.
Will replace ISO 9689:1990

Abstract

Specifies a method for testing the resistance of raw optical glasses and a classification of optical glasses according to the aqueous alkaline phosphate-containing detergent resistance (phosphate resistance) determined by this method.

General information

  • Status
     : Under development
    Stage
    : Final text received or FDIS registered for formal approval [50.00]
  • Edition
     : 2
  • Technical Committee :
    ISO/TC 172/SC 3
    ICS :
    81.040.10 
  • RSS updates

Life cycle

Sustainable Development Goals

This standard contributes to the following Sustainable Development Goal

9
Industry, Innovation and Infrastructure

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